Michael nunca teve tempo de viajar no Paycheck. De fato, ninguém fez o mesmo neste filme. A engenharia reversa da máquina fez com que ele enxergasse o futuro, mas não pode ser usado para viajar no tempo.
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Jennings realizes he must have built this device based on Dekker's invention and, on realizing the horrors that will come, prepared the envelope, using the forecasts from the machine to allow his future self to return to Allcom and destroy the machine. Furthermore, as Rethrick discovers, Jennings rigged the device to malfunction, preventing Rethrick from anticipating Jennings' actions.